Definition: In Hebrew, "psych9" literally translates to "the heart." It refers to the organ that controls and influences the body's functions, specifically, the heart. The term "psycho-" can refer to both mental and psychological states, making it a versatile term in Jewish literature. Psych9 is also mentioned in the Book of Job (Job 38:1-2), which describes the state of the human soul after death as being divided between two parts: the good part (the heart) and the evil part (the soul).